[Gc] RAM enough but out of virtual memory?

mental at rydia.net mental at rydia.net
Mon Jul 18 16:45:45 PDT 2005

Quoting Zhang Le <69dbb24b2db3daad932c457cccfd6 at gmail.com>:

> Interestingly, when I try to run my program on a Linux machine
> with 4G
> RAM, it stops at the same position as on the 512 RAM machine. I'd
> expected it runs longer!  Also, I keep getting warning message
> like:
> GC Warning: Repeated allocation of very large block (appr. size
> 20480):
>         May lead to memory leak and poor performance.
> after it consumes more than 400MB vram, though real RAM used is
> always
> under 100MB reported by top.

Two Linux-specific questions (they're not GC options): is memory
overcommit enabled or disabled, and are there any rlimits in


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